Huh, that doesn't match my experience. I had an '07 S40 that I bought new in, well, '07. At the time, I saw a lot of them on the road and 9 times out of 10, it was a guy driving it. I still see them on the road and the same applies.
My wife really did like my S40 and loved to drive it. I did too for that matter.
I was sad when I couldn't get a new one after mine was totalled. I had to get an S60 instead (MY2012). I do love my S60, but there are things about my S40 that I miss.